discov_num |
notes |
refcode |
LDS 782 |
AB: NLTT 53397/53398 |
Chm2004 |
|
This system counts as single in our statistics, even though it appears |
|
|
to be a triple system in reality. The reason for this is that the A |
|
|
component was the AstraLux target, and the BC pair at ~7.8" is outside |
|
|
of the completeness cut-off at 6". Since the BC pair is visible in the |
|
|
AstraLux images, we can nonetheless analyze it astrometrically. This |
|
|
pair was first reported by Beuzit et al. (2004) with rho = 0.978" and |
|
|
theta = 305.8deg. There are no error bars quoted, but if we assume |
|
|
that the quoted precision in decimal places corresponds to measurement |
|
|
precision, and adopt errors of 5 mas and 0.5deg, which should be |
|
|
conservative in that circumstance, we find that common proper motion |
|
|
can be confirmed at a 76 sigma confidence level. Hence, physical |
|
|
companionship can be confidently inferred, even if the errors should |
|
|
be substantially larger than what we have assumed. |
Jnn2012 |
refcode |
metd |
author |
reference |
Chm2004 |
E - |
Chaname, J. & Gould, A. |
2004ApJ...601..289C |
Chm2004 |
|
ApJ 601, 289, 2004 |
|
Chm2004 |
|
(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early |
|
Chm2004 |
|
versions of 2MASS and UCAC, with date given only as "circa 2000". Measures |
|
Chm2004 |
|
identical to discovery observations - predominantly close pairs - were assumed |
|
Chm2004 |
|
not new observations, so not included in WDS. Similar concerns when primary and |
|
Chm2004 |
|
secondary magnitudes or proper motions were the same.) |
|
Jnn2012 |
Cl j |
Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S., |
2012ApJ...754...44J |
Jnn2012 |
+E2 |
Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T. |
|
Jnn2012 |
|
ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b) |
2014ApJS..214...17J |
idgroup |
discov |
author |
1 |
BEU |
Beuzit, J.-L., Segransan, D., Forveille, T., Udry, S., Delfosse, X., Mayor, M., |
1 |
BEU |
Perrier, C., Hainaut, M.-C., et al. |
2 |
LDS |
Luyten p.m. catalog (from additional DD list) |
2 |
VGT |
Vogt, N., Schmidt, T.O.B., Neuhauser, R., Bedalov, A., Roell, T., Seifahrt, A., & |
2 |
VGT |
Mugrauer, M. |
3 |
VGT |
Vogt, N., Mugrauer, M., Neuhauser, R., Schmidt, T.O.B., Contreras-Quijada, A., & |
3 |
VGT |
Schmidt, J.G. |